Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number BNS 819-D03-K12-100-10 found under Switch Sensitive by Navy United States Department Of. The National Stock Number assigned to this part is 5930015516363, and the Federal Supply Class is 5930 Switches. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like BNS 819-D03-K12-100-10.